diff options
| author | Jacopo Mondi <jacopo+renesas@jmondi.org> | 2020-11-20 17:15:29 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-12-30 11:53:29 +0100 |
| commit | 4440b4861798f7f8feb72dd36e7aaa0b77635f00 (patch) | |
| tree | 2315d0ea9debb70bd693e5455d7205d5556f8600 /drivers/media | |
| parent | 978649ab70c17e282af5715b8e01a078f5b27dbc (diff) | |
media: rdacm20: Enable GPIO1 explicitly
[ Upstream commit 7fe1d4453fb6bf103d668a19d957a7b2fc21887c ]
The MAX9271 GPIO1 line that controls the sensor reset is by default
enabled after a serializer chip reset.
As rdacm20 does not go through an explicit serializer reset, make sure
GPIO1 is enabled to make the camera module driver more robust.
Fixes: 34009bffc1c6 ("media: i2c: Add RDACM20 driver")
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/i2c/rdacm20.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/media/i2c/rdacm20.c b/drivers/media/i2c/rdacm20.c index 1ed928c4ca70..16bcb764b0e0 100644 --- a/drivers/media/i2c/rdacm20.c +++ b/drivers/media/i2c/rdacm20.c @@ -487,9 +487,18 @@ static int rdacm20_initialize(struct rdacm20_device *dev) * Reset the sensor by cycling the OV10635 reset signal connected to the * MAX9271 GPIO1 and verify communication with the OV10635. */ - max9271_clear_gpios(dev->serializer, MAX9271_GPIO1OUT); + ret = max9271_enable_gpios(dev->serializer, MAX9271_GPIO1OUT); + if (ret) + return ret; + + ret = max9271_clear_gpios(dev->serializer, MAX9271_GPIO1OUT); + if (ret) + return ret; usleep_range(10000, 15000); - max9271_set_gpios(dev->serializer, MAX9271_GPIO1OUT); + + ret = max9271_set_gpios(dev->serializer, MAX9271_GPIO1OUT); + if (ret) + return ret; usleep_range(10000, 15000); again: |